This is a pair of two (2) new air-loc 4. 80-12 and 5. 30-12 multi-fitment atv / lawn and garden / golf cart tire inner tubes. They are multi-fit tubes that are made to be used in the following sizes: 4. 80-12 and 5. 30-12. Themon applications are for atv, lawn mower and trailer tires. This tube has a standard tr13 short rubber valve stem.